Use the graph to write an equation y = acos[b(x – h)] + k to model the situation.
2 answers:
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The doubly-shaded area is the solution set. The dashed line is not included.
The doubly-shaded area is the solution set. The dashed line is not included.
Answer:
See explanation
Step-by-step explanation:
In the figure below, segment CD is parallel to segment EF, DE is a transversal, then angles DIH and HGI are congruent as alternate interior angles when two parallel lines are cut by a transversal.
Consider triangles DIH and EGH. In these triangles,
as alternate interior angles;
as vertical angles;
because point H bisects segment DE (given).
Thus,
by AAS postulate